I'm currently reviewing concurrency and wanted to double check my understanding. Let's say I have a simple queue class that I want to use multiple th ...
I'm currently reviewing concurrency and wanted to double check my understanding. Let's say I have a simple queue class that I want to use multiple th ...
Here is the error stack, java.util.ConcurrentModificationException at java.util.ArrayList.writeObject(ArrayList.java:766) at java.lang.reflec ...
I am trying to track a resource which behaves in an asymmetric manner. That is, it responds immediately to a start() request, but finishes processing ...
Scenario Multiple threads add objects to an ArrayList list, which is an attribute of a ListHolder object listHolder, which is shared by all the threa ...
When threads are waiting to access the critical section using synchronized block why the threads states show as BLOCKED and when the threads are waiti ...
I have a couple of charts, some with a single series, others with multiple series. I show shared tooltips for charts with multiple series. I show a ve ...
I'm making a website in which I could learn the flags from all around the world. The idea is before the front is loaded, my back choose a random int, ...
I want to print "ping" "pong", which are in same class but different method, 5 times using synchronized block. The problem is that it stops after pri ...
I've got this legacy pseudocode: public class Wrapper { private volatile Sink sink; public synchronized void flushSink() { if (sink != null) ...
I wish to copy /web/playbooks/automation/misc/filecopyprod from mysourceuser@mysourcehost to destination mydestuser@mydesthost under the below locatio ...
I am trying to figure out how to avoid an NPE in the the code below. I am unable to purposely reproduce the error, but every once in a while I get an ...
Good afternoon! Inside class B, a method is defined using the keyword "synchronized". Inside this method, you work with an object of class A, which i ...
I have a question about visibility between varaibles in threads (see below), while loop cant stop after I comment synchronized (this){}, but uncomment ...
I have the following example which tries to transfer money between 2 account, I was thinking a synchronized on this is enough, I ran the example sever ...
I'm trying to prevent race condition in my code, At one code block if statement checking a condition with a method (if a variable is null or not), and ...
I have a List<T> that multiple threads read from. Rarely some threads add or delete to that list. I know threads must use that object in a synch ...
I have a for loop that iterates through an ArrayList and during the process, adds more items to the list and processes them as well (iteratively). I a ...
I am trying to synchronise a singleton. I would need to make this method like the equivalent of synchronized in java. What happens to me is that becau ...
I'm referring to JCP 4.4.2 and it has following sample code The book said this ImprovedList is thread safe, but I have a question: The input param ...
Full code above----------------- and following 3 codes with almost same expressions. << code 1 >> : synchronized(m) {} << cod ...